Machine for concaving the breast edges of heels



W. HUBBARD. MACHINEEEDR CONCAVING -THE BREAST EDGES 0F HEELS. 7

APPLICATION FILED MAR. 17. 1919.

1,435,234, Patented Nov. 14, 1922.

Patented Nov; l t,

VIILLIAM HUBBARD, OF NEW YORK. ASSIGNOR T0 UNITED SHQE MACHINERY GOBPORATIQN QF PATERSON, NEW? JERSEY, A CORTEOIEEATION OF NEW JERSEY.

Application filed March 17, 1919. Serial No. 283,138.

T 0 (M whom "it may concern Be it known that 1, WILLIAM HUBBARD, a

citizen of" the United States, residing at Rochester, in the county of -Monroe and State of New York, have invented certain Improvements in Machines for Concaving the Breast Edges of Heels, ot which the following description, in connection with the accompanying drawings, is a specification, like reference characters on. the dra ings indicating like parts in the several figures.

This invention relates to cutting machines and i herein illustrated as embodied in a machine for concaving or scalloping the breast-edges of heels.

A machine of this type is shown in the patent to Busell No. 1,030,567 and comprises a frusto-conical milling cutter and a pair of yielding separable gages carrying hook orstops located adjacent to the cutter.:

In the operation of such a machine the heel is pushed. between the gages into contactwith the cutter until its movement is arrested by the stops which engage the breast of the heel a short distance from the tread surface thereof. \Vith the majority of heels the construction, which has been outlined above and is described in detail in the patent, operates satisfactorily, but with certain heels (lilticultics are experienced. For example, it the reel to be operated upon is a Louis heel and it is desired. that the scallop shall extend entirely across the breast-edge of the heel and well up on the breast thereof, the stops'i't adjusted to produce such a cut, would lie in the path of the cutter. Moreover, even if the desired scallop iso'f an extent suiiiciently Sll'HlllQl than th atindicated above so that the stops can he used. the peculiar curve 0% the breast of a Louis heel does not afford a sat istactory bearing sur'lia I may contact.

with which they According to one feature of the PlGEk-Ell'ij' invention improved stop means is provided which extends acrossthe space between. the gages in the path of a piece of work whic. is being moved forward. machine this top meal Lakes the form of a rod which lies across the breast of the heel well above the tread surface thereof and ex tends loosely through perforations in the separable side gages so that the eparation of the gages is permitted without a fecting theln the illustrative operativeness of the rod. With this construction Louis heels as well as other "frequently encountered styles may readily be operated upon.

It is sometimes desired to produce a double scallop, and another feature 01' the invention relates to a construction whereby thi result may be accomplished. In the illustrative machine the side gages may be adjusted so that the distance between them is greater than the width of the heel and then the heel may be presented to the cutter first with one side in contact with one gage and then with the other side in contact with the other gage. whereby there may be formed two scallops which may or may not overlap according to the distance between the gages, the rod referred to above determining the depth or each scallop by limiting the approach of the heel to the cutter.

These and other features of the invention including certain details of construction and combinations of parts will he described as embodied in an illustrative machine and will be pointed out in the appended claims.

Referring now to the accompanyin drawings.- m D Fig. 1 is a perspective of the opei'ative 111- strumontalities of a machine in which the present invention is embodied;

2 is a plan view, partly in section, and with certain parts omitted, showing a heel in process of being operated upon;

Fig. 3 is a. perspective of a Louis heel. which has beenoperated upon, and

Fig. 4 is a more or less conventional view showing how a double scallop may be produced.

The illustrative machine. in its general. organization, is similar to the patented ma chine. The machine frame 2 supports a shaft i having a pulley 6 rotated by a. belt 8 which may be connected to any suitable source of power. A rotary cutter 10 is secured to the shaft by a screw 12 which permits said cutter to he removed and replaced since cutters or different sizes-are commonly used. The cutter is in the form of a frustum o1 a cone having its largest diameter farthest from the frame of the machine, and its perimeter is made up of series of blades 14.. i

Secured to the frame f the ma by a neck 16 is a cylindrical, horizontally disposed bearing portion 18 upon which a sleeve 26 is slidably mounted. An adjusting screw 22, the stem of which is threaded into the bearing member and rotatable in. but held from longitudinal movement with respect to the sleeve 26, furnishes means for adjusting the sleeve and for holding it in adjusted position. b c L Angularly connected with. the sleeve 26 is a second sleeve 30, the end remote from the juncture being eut away so as to leave a semi-c 'lindrical portion. Rotatahly mounted in said sleeve but restrained from longitinlinal n'lovenlent with. respect thereto is a screw-threaded rod 3% having a milled head 36. This rod is threaded through a screw-threaded portion oi": a carrier lO which may be moved longitudinally of the sleeve by rotation of the milled head this move ment being substantially parallel to the cutting edge of the cutter 10-or, more accurately, to that element of the cutter which first contacts with the work. A worlerest d2 has an oli'set portion eta from which a stem extends downwardly into a pinch-bearing in the carrier ll), a pinch-screw d6 being provided to hold the work-rest in adjusted angular po'sitioi'r- In order vto position the work-support d2 vertically, a screw-threaded rod d8 is threaded into a boss on the carrier 40 and extends up into engagement with the stem of the work-rest, said l-o'd being provided with a milled head and with a locknut 52.

Two rods 5e and 56 are slidably held in the Work-resh-lmd these rods are notched to form *achs which engage a pinion 62 placed between tihem. To the rod 54 is secured an upper site gage (3S, and to the rod 56 is secured a lower side gageTe. he lower end oi? the rod 54 has threaded thereon a thumb nut 76, a spring 78 being located beti'veen the upper surface oi? the nut and the under surfade of the worl 1"est d2. On the upper end of the rod 5% is threaded an adjusting nut 80. l'l 'ith this construction, the gages 6S and 74 are .lnovable equally in o iiposite directions, the normal 'di stance between them being; determined by the position. of the adjusting nut 80 l In the operation cit the machine, the tr d face of the heel of shoe is placed iioh the face of the worlbrest and is tl'ien pres uted bi.'east--loreniiostg to the cutter by being pushed between the separable gages. By manipulating the screw 22- the work rest may be adjusted toward and from the cutter to regulate "thedepth oi? the seal lop; by'manipulating the screw 341 the work rest may be adjusted parallel to the cutting edge or the cutter to i egu'late the length of the scallop; and, by loosening the pinch screw 4:6 and manipulating the screw t8, thelocate the scallop widthwise of the heel. The work-rest may also be adjusted angularly when the pinch-screwdG has beenloosened. The machine, as thus far described, with the exception of the gages 68 and Tel, is or may be substantially thesaine as the patented machine.

In that machine the side gages are provided at their ends nearest to the cutter with stops in the form of hooks which engage the breast of the heel and limit its movement toward the cutter. For certain kinds of heels the patented construction is not suited; In Fig; 5: there is shown :1 Louis heel having cut therein a scallop of the usual form for such a heel This s fallop, it will be noted, is of a length. to extend across substantially the whole width. of the heel and is wide enough to extend from five-eig rhths to three- (niartei's of an inch up the breast face of the heel. The stops or hooks of the patented machine would obviously Contact with the cutter before the work-rest could be adjusted close enough to the cutter to produce this p'articulai' scallop. Moreover. even if the scallop were not so extreme, the breast of a Louis heel owing to its curvature, does not present a satisfactory surface for contacting firmly with the stops of the patented machine. In order then to provide for scallops of the shape shown in Fig. 3 and for other shapes of scallops and heels the hooks or stops ofthe patented machine have been removed and replaced by a rod 101 which is finely slidable through perforationsformed in blocks 103" said blocks being, fast to or integral with the gages 68, 74-. In order to prevent the rod from slipping out of the perforations, thumb-nuts 105 are threaded upon its out. s. lVhen; now, a heel is placed with its tread tace against the supporting surface of the work rest 42 and moved, breast-foremost, toward the cutter, it is arrested b v contact of the breast. of the heel with the mt said rod being located at a sufficient distance from the work-rest to permit the formation 01 a scallop which extends as far up the breast of the heel as is ever desirable. In the patented machine the operative faces of the side ga es are hat or substantially so but in the present machine they are convexly curved to correspond. ap- 'nfioximately to the concave curvature of the sides of a Louis heel so as to guide the heel accurately in its movement toward the cutt It is; sometimes desired to produce a socalleddouble scallop in which case two comp'arativelv short scallops are made, the adjacent ends of which may be spaced apart, or may meet or the two'cutsinay overlap, in which case the junction of the two scallops will be rearward of the breast corners. F i-g. shows how the present construction 111a} be used to produce this double scallop eii ect. The figure shows a double scallop in which the two small scallops just meet at.

their adjacent ends. Tnproducing this and similar effects it may be desirable to use a comparatively small cutter, and'in the figure such a cutter is indicated'at 110. "The adusting nut 80 is manipulated to separate the side gages 68 and 74 a distance greater than the width of the heel,in the figure the distance between these gages is approximately one and one-half tinies the width of the heel. ith the gages thus. set, the heel ispresented first as shown in full lines with one side against one gage, for example the gage 6S, whereupon the lower scallop is cut and then with. its other side against the other gage, whereupon the upper scallop is cut. it should be noted that whatever the position of the gages may be, the stop in the form of the rod 101 always extends'across the breast of a heel which is placed between the gages in position to engage the breast of the heel when the desired depth of scallop has been made.

5 Having thus described my invcntion,what I claim as new and desire to secure by Let ters Patent of the United States is:

1. A machine of the class describedhaving in combination, a tool for operating upon a Louis heel, separable gagesadapted to permit the work to be moved forward between them to the tool. and a member shaped to engage firmly the breast of a Louis heel above the tread as it is moved between the gages, located in the path of movement of the heel, and arranged to limit the forward movement of the heel towards the tool.

2. Amachine of the class described. having in combination. a tool for operating upon a piece of work, separable gages arranged to permit the work to be moved forward between them t center the work with respect to thetool and a stop-member slidably mounted on'the gages to permit their separation and located to engage the work and limit its approach to the tool.

3. A machine for operating on a heel which is attached tov a shoe, having in combiuation, a cutter, a pair of separable gages adapted to permit the heel of the shoe to be moved between them to the cutter without danger of bringing any other part of the shoe into engagement with the cutter, and a member between the gages arranged. to extend. across the breast of the heel to limit the movement of the work toward the cutter.

4.. A. machine for producing a scallop in heel, having in combination, a cutter, a pair oi separable gages adapted to permit the heel to be movedbetween them to the cutter, a rod extending across the space between the gages and located in the path of movement of the work, and slidingly the heel to be moved between them to the cutter, a member movable to span the space between the gages in all degrees of separation and located in. the path of move ment of the work, and means whereby the relative positions of the gages and member and that of the cutter may be varied.

6. A machine for producing a scallop in a heel, having in combination, a cutter, a pair of separable gages for engaging the sides of the heel, and a st0p-member mount ed partly in one gage and partly in the other and located'to extend across the path of the heel to limit the extent of movement of the heel toward the cutter.

7. A machine for producing a scallop in a heel, having in combination, a cutter, a pair of separable gages for engaging the sides of the heel, and a single stop-member mounted slidingly in the gages and located to extend across the path of the heel to limit the extent of movement of the heel toward the cutter.

8. A machine for producing a scallop in a heel, havingin combination, a cutter, a pair of separable gages for engaging the sides of the heel, and a stop-rod carried by the gages and located to contact with the.

breast of the heel as the heel is moved to ward the cutter.

9. A machine for producing a scallop in a heel, having in combination, a cutter, a pair of separable gages for engaging the sides of the heel, said gages having alined perforations, a stop-rod extending loosely through said perforations, and means for adjusting the gages toward and from each other in a path substantially parallel to the axis of the rod.

10. A machine of the class described, having a combination, a cutter, a pair of gages located at equal distances on opposite sides oi? the axis of the cutter, and spaced apart a distance greater than. the width. of the work, to be operated upon to guide the work as it is presented successively in engagement with diiferent gages to produce two difierently positioned cuts by successive operations of the cutter, and a member extending across the space between the gages in position to limit the approach of the work to the cutter when either gage is being used. to guide the presentatlon of the work.

11. A machine for producing a plurality of scallops in a heel, having in combination,

a cutter, a pair of gages adapted to engage respectively the sides of the heel, means for adjusting the gages tea position in which the distance between them is greater than the width of the heel, and a stop-member connecting the gages and. mounted to permit said adjustmentwhereby the heel may be presented to the cutter first with one side in engagementwith one gage and then with 

